3D 프린팅 기술로 첨단 경쟁령을 확보합니다.

To increase its competitive edge, Arad looked to PolyJet 3D printing to help develop smart water meters. Bringing the technology in-house means quickly 3D printing prototypes. More interestingly, it also enables Arad to 3D print injection molds for low-volume runs, which means functional testing can take place with the intended production material and process.

3D printed injection molds.

Demanding requirements govern the design, testing, and production of the watertight components that protect electronics. The ultrasonic welding required to seal the parts together can only be tested on real components in the final material, typically produced using an aluminum test mold or even the final steel mold. These metal molds cost $5,000-$20,000 and take four weeks to three months to produce. If the welding trial reveals needed design improvements, the mold- making process starts again and the cost multiplies.

Instead, Arad now creates injection molds using its PolyJet 3D printer. The design includes a step joint for the welding process, which provides high strength and good aesthetics since the welding melt partially encapsulates the joint. The molds are 3D printed using Digital ABS material in four parts: the core, cavity, and two inserts to create the negative draft. The total printing time is just 10 hours.

Ready for welding.